Here is the deal. You want a good mobile app developer, find a good coder, and train him/help him learn.

As dinedal noted, it is slow going, as it is outside his day job.

There used to be a time where employers would recognize an employee's abilities, and provide for his learning of new subject matter.

Sadly, today, you either have to be able to demonstrate the knowledge out of the gate, or be damned.

There are plenty of good developers who could easily immerse themselves in mobile app development for two weeks, and become pretty skilled mobile devs in little time.

Nobody wants to pay for that, though.